Lore: This ATD3A6 Iron Crab II is the tracked variant of the orginal ATD3E4 Iron Crab. This unfortunate crew was hit while at battle speed of 60 mph. She took two direct hits, a HEAT round which obliterated her left track and an APFSDS that passed completely through the turret. After action reports stated that the tank hunter simply disintegrated as she tripped over her own wrecked tracks and flipped over. Finally she came to an inverted rest in a roadside ditch.

Designer Notes: This is part kinetic special effects study and part armor destruction physics study. There are several details that the concept study is missing such as the disintegration of the left track and the effects on the speeding hull which probably should be bouncing around. The explosion of the turret is missing some smoke and fire effects. The Iron Crab II's ATDA6 designation is fictional. Modern military designations might look something like M30A6 or M134A6. I've been theorizing if military forces would or would not distinguish between mecha (robotic) and mech (armored fighting vehicles) weapon systems. My conclusion is that some would and some would not as they would include both weapon systems under the AFV banner. For those that would distinguish between the two they may very well change the variant designation from A (M1A3 Abrams for example) to E for Enhanced or M for Mecha. Some nations might opt for a distinction by incorporating M (Mecha) into the acronym description mechanics. So if you had an Infantry Fighting Vehicle with both a mech and mecha variant, their descriptions may look something like IFV (mech) and IFM (mecha).